Results 61 to 70 of about 55,360 (300)

A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]

, 1956
An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
core   +1 more source

Measurements of ignition delay time on unsteady hydrogen jets.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1984
The paper describes an experimental study on the ignition of unsteady hydrogen jets injected into compressed high temperature air in the test section of a free piston shock tube. Pressure measurements as wall as the detection of light emission due to combustion of a hydrogen-oxygen gas mixture were made. We found that the compression process of the air
Fumio HIGASHINO, Toshikazu SHIONERI, Akira SAKURAI   +2 more
openaire   +2 more sources

Solution‐Processed Nickel Oxide as Efficient Hole Transport Layers in Inverted Perovskite Solar Cells

Advanced Science, EarlyView.
This review summarizes recent advances in four mainstream solution‐based techniques for synthesizing NiOx hole‐transport layers for high‐performance perovskite photovoltaic cells, and highlights the key challenges and future prospects for achieving high efficiency, long‐term stability, and low‐cost perovskite photovoltaic technologies toward ...
Zheng Wu, Zeliang Qiu, Yuxin Tao, Yuyang Qiu, Yuwei Duan, Jianxing Xia, Feng Li, Qiang Peng   +7 more
wiley   +1 more source

Ignition processes and characteristics of charring conductive polymers with a cavity geometry in precombustion chamber for applications in micro/nano satellite hybrid rocket motors

Defence Technology
The arc ignition system based on charring polymers has advantages of simple structure, low ignition power consumption and multiple ignitions, which bringing it broadly application prospect in hybrid propulsion system of micro/nano satellite.
Zhiyuan Zhang, Hanyu Deng, Wenhe Liao, Bin Yu, Zai Yu   +4 more
doaj   +1 more source

Experiments and Simulations of n -Heptane Spray Auto-Ignition in a Closed Combustion Chamber at Diesel Engine Conditions [PDF]

, 2018
Auto-igniting n-heptane sprays have been studied experimentally in a high pressure, high temperature constant volume combustion chamber with optical access.
Boulouchos, Konstantinos, De Paola, Giorgio, Margari, Ourania-Nektaria, Mastorakos, Epaminondas, Wright, Yuri   +4 more
core  

Nano Carbon‐mesh with Excellent Bonding Performance via Hydro‐cage De‐shielding Strategy

Advanced Science, EarlyView.
A hydro‐cage de‐shielding strategy transforms cellulose‐based films into a dragonfly‐wing‐like nano carbon‐mesh (NCM) adhesive through instantaneous carbonization‐polymerization. The resulting NCM‐plywood achieves exceptional wet shear strength (1.24 MPa at 63°C), exceeding Class II plywood standards, and retains 0.73 MPa after boiling‐water cycles ...
Weijia Yang, Jianyong Wan, Hongda Guo, Haizhu Wu, Yongli Yang, Wenhe Bi, Zhengyong Yang, Chenghua Wang, Bertrand Charrier, Hisham Essawy, Antonio Pizzi, Xinyi Chen, Zhijun Chen, Guanben Du, Xiaojian Zhou   +14 more
wiley   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

A Leaf‐Inspired Janus‐Structured Triboelectric‐Moisture Hybrid Energy Harvester

Advanced Energy Materials, EarlyView.
This study proposes a bioinspired Janus structured energy‐leaf with hybrid triboelectric‐moisture hybrid energy harvesters. This hybrid energy harvester is demonstrated in an intelligent emergency system for effective distress signaling and evacuation guiding during potential crises.
Liang Wei, Rui Gu, Yixuan Fu, Ziwei Huo, Chao Liu, Jiahong Yang, Siqi Sun, Yang Liu, Qijun Sun, Dong‐Hwan Kim, Zhong Lin Wang   +10 more
wiley   +1 more source

Experimental and modeling study of the autoignition of 1-hexene/iso-octane mixtures at low temperatures [PDF]

, 2005
Autoignition delay times have been measured in a rapid compression machine at Lille at temperatures after compression from 630 to 840 K, pressures from 8 to 14 bar, \Phi = 1 and for a iso octane/1 hexene mixture containing 82% iso-octane and 18% 1 hexene.
Barbé, Battin-Leclerc, Benson, Buda, Callahan, Ciajolo, Clarkson, Curran, Curran, F. Battin-Leclerc, Fieweger, G. Vanhove, Glaude, Glaude, Gray, Heyberger, Heyberger, Klotz, Lee, Minetti, Minetti, Minetti, Minetti, Muller, P.A. Glaude, R. Fournet, R. Minetti, S. Touchard, Stark, Touchard, Vanhove, Warth, Westbrook, Yahyaoui   +33 more
core   +3 more sources

Silicon‐Based Anodes for Sulfide Solid‐State Batteries: Failure Mechanisms and Multiscale Design Strategies

Advanced Energy Materials, EarlyView.
Silicon anodes in sulfide SSBs face coupled electrochemo‐mechanical failure by interface instability. This review examined recent advances and proposed mitigation strategies via material‐, electrode/interface‐, and cell‐level‐ engineering. We further evaluate scalable synthesis of sulfide SEs.
Murugesan Karuppaiah, JaeWook Seo, SeEun Park, Seung Hyeok Chu, Jung Kyoo Lee   +4 more
wiley   +1 more source